Qt5 first porting - only installing & viewing installed packages works

Qt5 first porting - only installing & viewing installed packages works
* This may require PackageKit-Qt pull request too, few functions may need Q_INVOKABLE from your site too. (but if no require, then you can ignore PackageKit-Qt pull request)
* NOTE: if you are using package manager without root rights, it's possible polkit fails to give rights to install files. (then you have to configure polkit, or make modifications to PackageKit - that it ignores polkit checks)
* NOTE: Only installing & viewing packages works - This is very early sharing to your site as well.